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How to avoid warning when introducing NAs by coercion
... na = x %in% na.strings
x[na] = 0
x = as.numeric(x)
x[na] = NA_real_
x
}
as.num(c("1", "2", "X"), na.strings="X")
#[1] 1 2 NA
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Android, ListView IllegalStateException: “The content of the adapter has changed but ListView did no
...kground thread which calculates ListView contents and update ListView partially, while results are calculated.
25 Answers
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What is the Difference Between read() and recv() , and Between send() and write()?
...ions read()/write() are the universal file descriptor functions working on all descriptors.
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How to uninstall a Windows Service when there is no executable for it left on the system?
How do I uninstall a Windows Service when there is no executable for it left on the system? I can not run installutil -u since there is not executable left on the system. I can still see an entry for the service in the Services console.
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Can we delete an SMS in Android before it reaches the inbox?
...e number verification, services which are provisioned via SMS (though generally this should be done with data SMS), or for applications which otherwise improve the user experience by processing specially-formatted messages in order to show them in a nice Android-specific UI.
As of Android 1.6, inco...
How to randomize (or permute) a dataframe rowwise and columnwise?
...] 1 0 0 1 0
[4,] 0 0 1 0 1
To explain the call:
out <- permatswap(mat, times = 99, burnin = 20000, thin = 500, mtype = "prab")
times is the number of randomised matrices you want, here 99
burnin is the number of swaps made before we start taking random samples....
Timing a command's execution in PowerShell
...turn the average, minimum and maximum time taken. You can add -Silent to swallow STDOUT.
– joshuapoehls
Mar 26 '12 at 18:11
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How do I tell Gradle to use specific JDK version?
...is is somewhat tedious work if you have 20+ build jobs... I think Gradle really needs to pick the Java Home directory from the system's configuration!
– Markus L
Jul 20 '16 at 12:39
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The smallest difference between 2 Angles
...les in the range -PI -> PI around a coordinate, what is the value of the smallest of the 2 angles between them?
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How to see which commits in one branch aren't in the other?
...rence. For example, if you have two branches, A and B, a usual way to list all commits on only one side of them is with --left-right, like the example above in the description of that option. It however shows the commits that were cherry-picked from the other branch (for example, "3rd on b" may be c...